Lub cev muaj zog yog cov tsav tsheb nrog lub nrawm nrawm. Thaum xaiv qhov nrawm piv thiab xaiv lub cev muaj zog, qhov kawg tso tawm qhov nrawm yog tsau. Txawm li cas los xij, hauv kev siv tiag tiag, muaj ntau lub sijhawm uas yuav tsum tau hloov pauv, xws li kev nrawm ntawm lub tshuab ntxhua khaub ncaws, qhov nrawm ntawm cov nplawm nplawm ntawm ntau yam kev cuam tshuam, kev nrawm ntawm lub tshuab xa khoom thaum thauj khoom sib txawv, thiab lwm yam ., yuav ua li cas kho qhov nrawm tau txhawj xeeb heev los ntawm cov kws tshaj lij thiab cov kws tshaj lij. lub ntsiab lus ntawm. Cov hauv qab no yog cov lus piav qhia luv luv ntawm ntau txoj cai tswj kev siv hauv kev tsim vaj tsev.
1. Kev tswj cov kauj ruam nrawm thiab kev hloov pauv txoj cai nrawm yog qhov yooj yim tshaj plaws thiab kev lag luam nrawm tshaj plaws txoj cai tswj hwm. Txawm li cas los xij, nws tsuas yog txwv rau lub sijhawm muaj peev xwm me thiab nruab nrab (qis dua 2kw) thiab tsawg tus pib. Feem ntau tsuas muaj ob qhov nrawm, thiab qhov ua tiav qhov kev tswj hwm qhov sib piv kuj tseem me me (l: 2 txog 6), thiab qhov txwv yog peb lub zog; hauv qee qhov kev lag luam tshwj xeeb, xws li tshuab dhos, cov iav nrog lub zog feem ntau siv. Kev tswj hwm nrawm-ib-kauj ruam. Txawm hais tias muaj ntau qhov nrawm, qhov hloov kho nrawm tsis loj.
2. Kev tswj tsis siv neeg nrawm tuaj yeem faib ua cov khoom siv hluav taws xob thiab hluav taws xob. Cov txheej txheem ib txwm muaj ntawm yav dhau los yog txhawm rau txhawm rau kho cov cuab yeej tsis muaj kev tswj nrawm (feem ntau yog siv hom disc, txhuam hom) ntawm kev sib txuas ntawm lub cav thiab lub thawv iav. Nws qhov zoo yog kev tswj nrawm nrawm, qauv tsis yooj yim, thiab tsim nyog rau ib puag ncig hnyav; qhov tsis zoo yog qhov kev tswj hwm qhov nrawm yog qhov me me (feem ntau tsis pub dhau 1:10). Txoj phuam phiab thiab txhuam txhuam yog cov khoom siv tau thiab xav tau kev saib xyuas thiab hloov pauv tas li. Qhov tom kawg yog qhov kev tswj hwm qhov ceev ntawm cov cav tsis sib xws, rotor kev tiv thaiv kev ceev ceev, lossis kev tswj hluav taws xob thiab kev tswj nrawm ntawm DC lub cav.